code: def prepare_inputs(self, model_id):
      tokenizer = JukeboxTokenizer.from_pretrained(model_id)
      tokens = tokenizer(**self.metas)["input_ids"]
      return tokens
  
file_path: transformers/tests/models/jukebox/test_modeling_jukebox.py
imports: import unittest
  from unittest import skip
  from transformers import is_torch_available
  from transformers.testing_utils import require_torch, require_torch_accelerator, require_torch_fp16, slow, torch_device
  from transformers.trainer_utils import set_seed
label_desc: Use image node_id 1 for calling the Jukebox5bModelTester obj's underlying member method code with example usage: obj.prepare_inputs(model_id) and returns: tokens